Medical Specialities

The Cigna Group vs UnitedHealth Group Incorporated Common Stock (DE)

WatchlistCI / UNHPrices through Oct 22, 2026

Why these are rivals: #1 and #3 by market value ($365B vs $79B) in Nasdaq's "Medical Specialities" industry; SEC SIC 6324 / 6324 (same major group); #1 and #3 by market value ($365B vs $79B) with SEC SIC 6324 (Hospital & Medical Service Plans).

Rivals, but right now the price gap does not have a measured habit of closing, so there is no paper idea, whatever the gap.

  • Co-movement: daily return correlation, 252 sessions: 0.36 (needs >= 0.60)
  • Mean reversion: ADF t-statistic of the spread: -1.48 (needs <= -2.873 (5% critical value))
Business leadership

UNH is the larger business

Annual revenue reported to the SEC. Scale, not market share.

YearCIUNHLarger
2025$274.9B$447.6BUNH
2024$247.1B$400.3BUNH
2023$195.3B$371.6BUNH
2022$180.5B$324.2BUNH
2021$174.1B$287.6BUNH
2020$160.4B$257.1BUNH

UNH led in every year with figures for both. Market value: CI $78.9B, UNH $365.2B.

Stock leadership

UNH is ahead now

Measured against the pair's own last 252 trading days.

UNH leads CI by 0.53 standard deviations: +7.0% over its usual price ratio. 1 lead switch in the last year.

Price change3 mo6 mo12 mo
CI+9.1%+12.9%+2.7%
UNH+1.0%+19.9%+16.3%
Relationship

Not a measured twin today

Only these tests can make a pair tradable on paper.

Pass
Aligned sessions: 2521 (needs >= 254)
Fail
Co-movement: daily return correlation, 252 sessions: 0.36 (needs >= 0.60)
Fail
Mean reversion: ADF t-statistic of the spread: -1.48 (needs <= -2.873 (5% critical value))
Pass
Speed: half-life of the spread, sessions: 37.56 (needs <= 63)
Data
Both stocks current
The twins over two years

Prices side by side, and the gap between them

CI The Cigna Group UNH UnitedHealth Group Incorporated Common Stock (DE)Price index, 100 = 2024-10-18. Tint = which stock is ahead of the pair's usual 1-year relationship (z beyond +/-0.5).
406080100Oct 2024Oct 2025Oct 2026CI 94UNH 75
Spread z-score: CI relative to UNH, against the 252 sessions before each day. Above 0: CI ahead; below 0: UNH ahead. Lines at +/-2 (idea) and +/-4 (stop).
-4stop-2idea0+2idea+4stopOct 2024Oct 2025Oct 2026
Data table (504 sessions)
DateCI indexUNH indexzAhead
2026-10-2294.0174.61-0.53UNH ahead
2026-10-2190.5973.21-0.68UNH ahead
2026-10-2091.2573.60-0.67UNH ahead
2026-10-1988.8471.43-0.65UNH ahead
2026-10-1689.9770.47-0.44near the usual relationship
2026-10-1588.9371.39-0.64UNH ahead
2026-10-1486.1869.45-0.68UNH ahead
2026-10-1384.0966.32-0.51UNH ahead
2026-10-1284.3366.45-0.51UNH ahead
2026-10-0984.0666.59-0.55UNH ahead
2026-10-0883.6465.12-0.42near the usual relationship
2026-10-0782.8966.01-0.60UNH ahead
2026-10-0681.6666.07-0.73UNH ahead
2026-10-0580.7466.46-0.87UNH ahead
2026-10-0280.5165.29-0.76UNH ahead
2026-10-0179.7564.11-0.70UNH ahead
2026-09-3080.9064.44-0.63UNH ahead
2026-09-2981.9265.82-0.70UNH ahead
2026-09-2880.9066.33-0.87UNH ahead
2026-09-2580.9666.11-0.84UNH ahead
2026-09-2479.0265.84-1.01UNH ahead
2026-09-2379.8465.18-0.85UNH ahead
2026-09-2281.4765.47-0.73UNH ahead
2026-09-2181.6966.28-0.81UNH ahead
2026-09-1881.9366.17-0.78UNH ahead
2026-09-1782.1465.87-0.73UNH ahead
2026-09-1683.4765.88-0.61UNH ahead
2026-09-1585.9866.00-0.39near the usual relationship
2026-09-1486.3267.34-0.52UNH ahead
2026-09-1183.5666.55-0.69UNH ahead
2026-09-1083.6068.17-0.89UNH ahead
2026-09-0982.7969.01-1.07UNH ahead
2026-09-0882.0970.37-1.31UNH ahead
2026-09-0484.0869.72-1.05UNH ahead
2026-09-0385.2070.39-1.03UNH ahead
2026-09-0284.1870.16-1.11UNH ahead
2026-09-0184.2469.57-1.04UNH ahead
2026-08-3182.1768.36-1.11UNH ahead
2026-08-2883.0068.99-1.11UNH ahead
2026-08-2782.6469.35-1.19UNH ahead
2026-08-2683.5970.40-1.23UNH ahead
2026-08-2583.1369.62-1.19UNH ahead
2026-08-2483.4770.01-1.21UNH ahead
2026-08-2182.5968.49-1.13UNH ahead
2026-08-2081.6767.56-1.12UNH ahead
2026-08-1982.5768.22-1.12UNH ahead
2026-08-1882.8969.16-1.21UNH ahead
2026-08-1781.9469.45-1.34UNH ahead
2026-08-1484.1070.53-1.26UNH ahead
2026-08-1382.7470.06-1.34UNH ahead
2026-08-1282.5671.20-1.49UNH ahead
2026-08-1181.5170.61-1.53UNH ahead
2026-08-1082.8671.76-1.54UNH ahead
2026-08-0784.0771.47-1.41UNH ahead
2026-08-0681.9270.92-1.55UNH ahead
2026-08-0580.5172.46-1.86UNH ahead
2026-08-0481.5671.55-1.68UNH ahead
2026-08-0383.9572.92-1.61UNH ahead
2026-07-3183.0572.75-1.69UNH ahead
2026-07-3085.6173.99-1.59UNH ahead
2026-07-2988.2473.83-1.36UNH ahead
2026-07-2889.6075.28-1.40UNH ahead
2026-07-2786.6173.32-1.47UNH ahead
2026-07-2486.1873.86-1.58UNH ahead
2026-07-2385.2174.36-1.72UNH ahead
2026-07-2284.7875.72-1.92UNH ahead
2026-07-2186.4676.61-1.87UNH ahead
2026-07-2084.5174.01-1.80UNH ahead
2026-07-1783.7674.80-1.97UNH ahead
2026-07-1684.4774.33-1.88UNH ahead
2026-07-1588.6373.47-1.44UNH ahead
2026-07-1490.2874.65-1.43UNH ahead
2026-07-1390.6375.33-1.49UNH ahead
2026-07-1087.3474.55-1.70UNH ahead
2026-07-0986.8575.79-1.89UNH ahead
2026-07-0886.2374.72-1.85UNH ahead
2026-07-0785.3075.17-2.00UNH ahead
2026-07-0683.9273.38-1.97UNH ahead
2026-07-0285.6574.68-1.97UNH ahead
2026-07-0182.4674.88-2.31UNH ahead
2026-06-3082.0572.97-2.17UNH ahead
2026-06-2982.9673.70-2.19UNH ahead
2026-06-2684.1675.12-2.25UNH ahead
2026-06-2583.8972.95-2.07UNH ahead
2026-06-2483.1771.24-1.97UNH ahead
2026-06-2384.2571.85-1.96UNH ahead
2026-06-2283.9571.40-1.95UNH ahead
2026-06-1883.1270.39-1.94UNH ahead
2026-06-1784.8570.14-1.77UNH ahead
2026-06-1686.8771.57-1.76UNH ahead
2026-06-1587.4572.16-1.79UNH ahead
2026-06-1288.6971.72-1.64UNH ahead
2026-06-1187.7571.20-1.68UNH ahead
2026-06-1088.0471.53-1.71UNH ahead
2026-06-0987.8072.51-1.86UNH ahead
2026-06-0886.1971.38-1.91UNH ahead
2026-06-0586.1570.13-1.78UNH ahead
2026-06-0483.5469.60-2.00UNH ahead
2026-06-0380.5766.19-1.90UNH ahead
2026-06-0281.1766.35-1.88UNH ahead
2026-06-0181.6066.69-1.90UNH ahead
2026-05-2982.5666.77-1.83UNH ahead
2026-05-2884.6267.16-1.68UNH ahead
2026-05-2785.0467.42-1.68UNH ahead
2026-05-2683.5866.16-1.69UNH ahead
2026-05-2285.1968.20-1.80UNH ahead
2026-05-2183.9367.15-1.82UNH ahead
2026-05-2084.2667.29-1.82UNH ahead
2026-05-1986.6968.33-1.72UNH ahead
2026-05-1885.3268.67-1.92UNH ahead
2026-05-1584.9069.14-2.05UNH ahead
2026-05-1487.7870.06-1.89UNH ahead
2026-05-1389.5070.43-1.78UNH ahead
2026-05-1288.8469.59-1.76UNH ahead
2026-05-1186.0367.49-1.78UNH ahead
2026-05-0885.7366.71-1.72UNH ahead
2026-05-0784.5464.91-1.61UNH ahead
2026-05-0683.9264.48-1.63UNH ahead
2026-05-0582.0463.88-1.76UNH ahead
2026-05-0483.1465.09-1.82UNH ahead
2026-05-0184.2064.74-1.67UNH ahead
2026-04-3086.4865.04-1.47UNH ahead
2026-04-2987.0065.09-1.42UNH ahead
2026-04-2884.8064.39-1.56UNH ahead
2026-04-2784.1062.27-1.33UNH ahead
2026-04-2482.0462.31-1.56UNH ahead
2026-04-2383.2562.25-1.42UNH ahead
2026-04-2281.7662.06-1.56UNH ahead
2026-04-2182.3560.75-1.28UNH ahead
2026-04-2083.3156.79-0.52UNH ahead
2026-04-1782.9356.99-0.56UNH ahead
2026-04-1682.2555.55-0.38near the usual relationship
2026-04-1579.9555.13-0.52UNH ahead
2026-04-1481.1355.16-0.38near the usual relationship
2026-04-1381.8854.95-0.26near the usual relationship
2026-04-1080.7353.43-0.14near the usual relationship
2026-04-0982.8753.88+0.00near the usual relationship
2026-04-0882.6153.72+0.01near the usual relationship
2026-04-0781.6254.02-0.10near the usual relationship
2026-04-0682.0549.40+0.57CI ahead
2026-04-0280.3648.68+0.53CI ahead
2026-04-0179.5648.10+0.55CI ahead
2026-03-3179.3947.50+0.63CI ahead
2026-03-3076.8145.96+0.63CI ahead
2026-03-2777.9645.47+0.80CI ahead
2026-03-2680.9847.06+0.83CI ahead
2026-03-2580.4647.50+0.74CI ahead
2026-03-2479.1347.80+0.59CI ahead
2026-03-2377.8247.32+0.56CI ahead
2026-03-2078.2348.38+0.46near the usual relationship
2026-03-1978.7449.23+0.40near the usual relationship
2026-03-1878.7549.92+0.32near the usual relationship
2026-03-1778.4150.49+0.23near the usual relationship
2026-03-1679.8750.12+0.39near the usual relationship
2026-03-1379.5249.52+0.44near the usual relationship
2026-03-1279.1348.64+0.53CI ahead
2026-03-1177.6450.08+0.25near the usual relationship
2026-03-1078.1149.57+0.35near the usual relationship
2026-03-0980.2650.06+0.46near the usual relationship
2026-03-0680.8450.29+0.48near the usual relationship
2026-03-0583.7150.70+0.64CI ahead
2026-03-0484.7451.26+0.66CI ahead
2026-03-0384.5050.77+0.70CI ahead
2026-03-0286.5651.78+0.73CI ahead
2026-02-2786.2651.49+0.75CI ahead
2026-02-2685.9650.33+0.87CI ahead
2026-02-2584.6549.89+0.84CI ahead
2026-02-2483.6348.09+0.98CI ahead
2026-02-2384.2849.57+0.86CI ahead
2026-02-2083.4350.91+0.66CI ahead
2026-02-1985.1050.90+0.78CI ahead
2026-02-1886.3550.60+0.90CI ahead
2026-02-1786.5250.75+0.90CI ahead
2026-02-1386.7451.47+0.84CI ahead
2026-02-1285.6049.92+0.94CI ahead
2026-02-1187.7248.97+1.17CI ahead
2026-02-1085.6647.97+1.16CI ahead
2026-02-0987.6248.40+1.24CI ahead
2026-02-0686.9248.57+1.18CI ahead
2026-02-0584.6847.15+1.21CI ahead
2026-02-0480.8748.44+0.84CI ahead
2026-02-0381.9649.89+0.76CI ahead
2026-02-0280.8250.14+0.67CI ahead
2026-01-3081.5850.37+0.70CI ahead
2026-01-2980.7451.31+0.56CI ahead
2026-01-2881.0751.62+0.56CI ahead
2026-01-2780.3849.63+0.71CI ahead
2026-01-2683.4661.73-0.16near the usual relationship
2026-01-2383.1062.54-0.23near the usual relationship
2026-01-2283.4562.23-0.18near the usual relationship
2026-01-2181.8261.05-0.17near the usual relationship
2026-01-2080.7359.41-0.10near the usual relationship
2026-01-1681.0158.11+0.03near the usual relationship
2026-01-1582.7259.51+0.02near the usual relationship
2026-01-1480.6558.81-0.03near the usual relationship
2026-01-1380.9058.62+0.00near the usual relationship
2026-01-1282.1559.78-0.01near the usual relationship
2026-01-0983.0260.39+0.00near the usual relationship
2026-01-0884.5060.89+0.05near the usual relationship
2026-01-0783.0759.99+0.05near the usual relationship
2026-01-0684.7561.26+0.05near the usual relationship
2026-01-0584.5160.04+0.13near the usual relationship
2026-01-0283.0759.06+0.14near the usual relationship
2025-12-3181.9157.95+0.16near the usual relationship
2025-12-3082.2958.31+0.16near the usual relationship
2025-12-2982.1557.75+0.20near the usual relationship
2025-12-2682.2958.26+0.18near the usual relationship
2025-12-2481.8057.51+0.21near the usual relationship
2025-12-2381.4757.02+0.24near the usual relationship
2025-12-2282.0257.08+0.27near the usual relationship
2025-12-1980.9257.48+0.19near the usual relationship
2025-12-1881.5557.61+0.22near the usual relationship
2025-12-1781.5058.22+0.18near the usual relationship
2025-12-1682.1858.67+0.19near the usual relationship
2025-12-1582.4959.88+0.12near the usual relationship
2025-12-1281.7660.01+0.08near the usual relationship
2025-12-1181.0359.12+0.11near the usual relationship
2025-12-1078.1557.65+0.07near the usual relationship
2025-12-0978.1956.81+0.14near the usual relationship
2025-12-0878.4356.81+0.16near the usual relationship
2025-12-0579.0058.09+0.10near the usual relationship
2025-12-0479.8958.55+0.12near the usual relationship
2025-12-0380.4559.64+0.08near the usual relationship
2025-12-0281.5856.98+0.33near the usual relationship
2025-12-0181.4256.74+0.34near the usual relationship
2025-11-2882.5257.89+0.32near the usual relationship
2025-11-2682.8457.88+0.34near the usual relationship
2025-11-2582.8057.28+0.39near the usual relationship
2025-11-2480.7956.01+0.38near the usual relationship
2025-11-2182.7656.17+0.47near the usual relationship
2025-11-2080.2454.69+0.46near the usual relationship
2025-11-1980.9554.26+0.53CI ahead
2025-11-1881.1355.05+0.49near the usual relationship
2025-11-1780.7556.27+0.39near the usual relationship
2025-11-1480.2656.51+0.36near the usual relationship
2025-11-1380.6258.38+0.26near the usual relationship
2025-11-1280.5459.52+0.18near the usual relationship
2025-11-1179.7657.49+0.28near the usual relationship
2025-11-1076.8356.46+0.22near the usual relationship
2025-11-0778.7456.92+0.28near the usual relationship
2025-11-0676.3056.45+0.20near the usual relationship
2025-11-0577.2657.54+0.18near the usual relationship
2025-11-0478.7758.08+0.22near the usual relationship
2025-11-0376.9758.60+0.11near the usual relationship
2025-10-3172.7459.96-0.19near the usual relationship
2025-10-3073.5460.52-0.18near the usual relationship
2025-10-2989.0262.37+0.43near the usual relationship
2025-10-2891.7964.58+0.42near the usual relationship
2025-10-2792.0264.25+0.45near the usual relationship
2025-10-2489.8263.64+0.40near the usual relationship
2025-10-2390.7963.28+0.47near the usual relationship
2025-10-2291.6363.46+0.50CI ahead
2025-10-2191.5264.14+0.46near the usual relationship
2025-10-2091.3263.99+0.46near the usual relationship
2025-10-1789.0762.60+0.45near the usual relationship
2025-10-1686.6362.62+0.36near the usual relationship
2025-10-1587.6763.40+0.36near the usual relationship
2025-10-1489.9263.19+0.47near the usual relationship
2025-10-1387.9262.97+0.40near the usual relationship
2025-10-1089.5062.24+0.52CI ahead
2025-10-0991.1164.55+0.45near the usual relationship
2025-10-0891.3064.94+0.44near the usual relationship
2025-10-0791.4163.84+0.51CI ahead
2025-10-0690.1862.99+0.52CI ahead
2025-10-0392.5663.24+0.60CI ahead
2025-10-0288.3962.10+0.51CI ahead
2025-10-0186.8061.15+0.50CI ahead
2025-09-3085.7960.62+0.50CI ahead
2025-09-2985.3160.60+0.48near the usual relationship
2025-09-2685.1760.41+0.49near the usual relationship
2025-09-2584.5460.67+0.45near the usual relationship
2025-09-2486.7461.76+0.48near the usual relationship
2025-09-2386.3361.04+0.51CI ahead
2025-09-2285.9059.92+0.57CI ahead
2025-09-1986.4259.11+0.64CI ahead
2025-09-1887.4358.78+0.71CI ahead
2025-09-1788.2759.97+0.68CI ahead
2025-09-1687.5659.65+0.67CI ahead
2025-09-1588.4361.08+0.63CI ahead
2025-09-1290.1161.89+0.66CI ahead
2025-09-1191.0362.08+0.69CI ahead
2025-09-1090.0160.88+0.72CI ahead
2025-09-0989.8861.08+0.71CI ahead
2025-09-0889.5556.22+1.01CI ahead
2025-09-0590.8755.37+1.12CI ahead
2025-09-0490.4954.49+1.18CI ahead
2025-09-0389.4354.05+1.17CI ahead
2025-09-0289.5054.21+1.17CI ahead
2025-08-2989.5454.40+1.17CI ahead
2025-08-2888.9953.07+1.25CI ahead
2025-08-2789.2753.35+1.25CI ahead
2025-08-2689.3852.74+1.31CI ahead
2025-08-2589.5153.52+1.27CI ahead
2025-08-2290.5853.97+1.30CI ahead
2025-08-2189.5753.26+1.31CI ahead
2025-08-2090.6552.64+1.41CI ahead
2025-08-1989.9153.41+1.34CI ahead
2025-08-1888.7954.16+1.25CI ahead
2025-08-1588.3553.37+1.30CI ahead
2025-08-1486.4147.66+1.66CI ahead
2025-08-1385.4547.72+1.63CI ahead
2025-08-1283.4745.92+1.70CI ahead
2025-08-1182.4544.31+1.81CI ahead
2025-08-0881.8244.05+1.83CI ahead
2025-08-0780.6542.95+1.89CI ahead
2025-08-0680.3543.15+1.88CI ahead
2025-08-0580.5844.07+1.83CI ahead
2025-08-0479.3442.31+1.95CI ahead
2025-08-0178.0441.74+1.96CI ahead
2025-07-3179.5843.81+1.87CI ahead
2025-07-3088.6546.71+2.07CI ahead
2025-07-2986.9645.83+2.10CI ahead
2025-07-2887.0249.53+1.80CI ahead
2025-07-2588.2149.34+1.89CI ahead
2025-07-2487.4848.91+1.92CI ahead
2025-07-2390.5851.35+1.88CI ahead
2025-07-2289.3050.06+1.95CI ahead
2025-07-2187.7449.53+1.95CI ahead
2025-07-1888.0149.62+1.98CI ahead
2025-07-1788.7750.57+1.95CI ahead
2025-07-1691.0251.35+2.02CI ahead
2025-07-1590.0151.21+2.01CI ahead
2025-07-1490.2052.77+1.91CI ahead
2025-07-1190.2653.39+1.88CI ahead
2025-07-1091.9052.58+2.05CI ahead
2025-07-0992.2053.18+2.04CI ahead
2025-07-0892.8654.02+2.02CI ahead
2025-07-0793.3453.32+2.13CI ahead
2025-07-0395.1654.17+2.18CI ahead
2025-07-0295.3553.99+2.23CI ahead
2025-07-0199.5257.26+2.19CI ahead
2025-06-3098.3954.77+2.38CI ahead
2025-06-2797.1254.27+2.39CI ahead
2025-06-2698.2153.13+2.59CI ahead
2025-06-2594.0553.02+2.42CI ahead
2025-06-2494.2953.65+2.41CI ahead
2025-06-2394.3452.79+2.53CI ahead
2025-06-2093.5653.02+2.51CI ahead
2025-06-1893.5753.93+2.46CI ahead
2025-06-1793.0154.22+2.43CI ahead
2025-06-1693.5854.01+2.53CI ahead
2025-06-1394.4655.04+2.51CI ahead
2025-06-1293.8655.92+2.43CI ahead
2025-06-1192.3254.52+2.52CI ahead
2025-06-1093.3453.33+2.75CI ahead
2025-06-0992.6853.23+2.77CI ahead
2025-06-0692.9153.23+2.84CI ahead
2025-06-0592.5751.94+3.02CI ahead
2025-06-0492.3052.73+2.97CI ahead
2025-06-0392.7652.88+3.04CI ahead
2025-06-0293.7553.50+3.10CI ahead
2025-05-3094.2453.00+3.27CI ahead
2025-05-2992.8752.35+3.34CI ahead
2025-05-2892.5252.34+3.40CI ahead
2025-05-2793.8351.79+3.67CI ahead
2025-05-2394.0451.89+3.79CI ahead
2025-05-2293.0652.08+3.81CI ahead
2025-05-2194.3753.19+3.89CI ahead
2025-05-2096.7356.46+3.74CI ahead
2025-05-1995.8255.46+3.93CI ahead
2025-05-1695.5251.25+4.73CI ahead
2025-05-1591.9248.16+5.19CI ahead
2025-05-1490.2854.07+4.19CI ahead
2025-05-1389.8554.67+4.19CI ahead
2025-05-1293.9766.49+2.87CI ahead
2025-05-0999.2466.82+3.40CI ahead
2025-05-0899.1467.69+3.34CI ahead
2025-05-0799.5468.65+3.31CI ahead
2025-05-0699.3569.26+3.27CI ahead
2025-05-0599.1171.07+3.03CI ahead
2025-05-0299.6370.21+3.25CI ahead
2025-05-0199.7670.34+3.30CI ahead
2025-04-30101.2072.23+3.22CI ahead
2025-04-29100.3671.84+3.24CI ahead
2025-04-2899.6573.73+2.93CI ahead
2025-04-2599.8173.50+3.01CI ahead
2025-04-2499.9174.48+2.91CI ahead
2025-04-23100.2175.13+2.89CI ahead
2025-04-22100.3275.00+2.96CI ahead
2025-04-2196.6674.67+2.61CI ahead
2025-04-1798.2579.72+2.05CI ahead
2025-04-1698.05102.71-0.82UNH ahead
2025-04-1597.81102.45-0.82UNH ahead
2025-04-1497.98103.06-0.87UNH ahead
2025-04-1198.27105.24-1.06UNH ahead
2025-04-1097.40104.35-1.07UNH ahead
2025-04-0995.24101.56-1.02UNH ahead
2025-04-0893.4097.10-0.76UNH ahead
2025-04-0793.8792.12-0.18near the usual relationship
2025-04-0495.9592.18+0.02near the usual relationship
2025-04-03100.7394.88+0.21near the usual relationship
2025-04-0298.7991.85+0.32near the usual relationship
2025-04-0198.5191.84+0.29near the usual relationship
2025-03-3197.9291.95+0.21near the usual relationship
2025-03-2896.7490.60+0.23near the usual relationship
2025-03-2796.6590.54+0.22near the usual relationship
2025-03-2695.6090.97+0.07near the usual relationship
2025-03-2594.3090.14+0.02near the usual relationship
2025-03-2495.3690.68+0.06near the usual relationship
2025-03-2194.2490.74-0.06near the usual relationship
2025-03-2095.6589.76+0.17near the usual relationship
2025-03-1995.4988.34+0.30near the usual relationship
2025-03-1895.9688.45+0.33near the usual relationship
2025-03-1794.2987.61+0.25near the usual relationship
2025-03-1493.1285.79+0.33near the usual relationship
2025-03-1392.8584.54+0.43near the usual relationship
2025-03-1292.5784.46+0.41near the usual relationship
2025-03-1194.6085.33+0.51CI ahead
2025-03-1097.2384.31+0.86CI ahead
2025-03-0795.5486.63+0.45near the usual relationship
2025-03-0693.9485.62+0.40near the usual relationship
2025-03-0592.2183.56+0.45near the usual relationship
2025-03-0491.9283.32+0.45near the usual relationship
2025-03-0392.7181.99+0.67CI ahead
2025-02-2891.9283.38+0.44near the usual relationship
2025-02-2790.1582.26+0.39near the usual relationship
2025-02-2690.8881.39+0.55CI ahead
2025-02-2593.4282.58+0.67CI ahead
2025-02-2489.5981.02+0.47near the usual relationship
2025-02-2189.2381.88+0.33near the usual relationship
2025-02-2089.1988.20-0.35near the usual relationship
2025-02-1988.4689.72-0.58UNH ahead
2025-02-1887.7287.91-0.47near the usual relationship
2025-02-1487.0091.91-0.96UNH ahead
2025-02-1389.2393.25-0.86UNH ahead
2025-02-1287.1192.59-1.03UNH ahead
2025-02-1187.8793.73-1.07UNH ahead
2025-02-1087.1593.64-1.14UNH ahead
2025-02-0785.3392.52-1.23UNH ahead
2025-02-0685.4993.05-1.28UNH ahead
2025-02-0587.2994.77-1.26UNH ahead
2025-02-0486.7495.76-1.43UNH ahead
2025-02-0387.0496.24-1.45UNH ahead
2025-01-3187.5695.24-1.31UNH ahead
2025-01-3084.2295.78-1.73UNH ahead
2025-01-2990.2794.47-0.96UNH ahead
2025-01-2890.1395.24-1.06UNH ahead
2025-01-2790.9995.42-0.99UNH ahead
2025-01-2487.3993.49-1.18UNH ahead
2025-01-2387.7993.01-1.09UNH ahead
2025-01-2286.0291.24-1.11UNH ahead
2025-01-2185.8992.17-1.23UNH ahead
2025-01-1784.5289.49-1.10UNH ahead
2025-01-1683.6289.64-1.23UNH ahead
2025-01-1584.7095.40-1.71UNH ahead
2025-01-1484.8395.46-1.71UNH ahead
2025-01-1384.0695.00-1.76UNH ahead
2025-01-1083.0391.41-1.52UNH ahead
2025-01-0883.1392.08-1.59UNH ahead
2025-01-0783.3190.28-1.38UNH ahead
2025-01-0683.2390.18-1.38UNH ahead
2025-01-0383.5490.06-1.34UNH ahead
2025-01-0281.6988.57-1.40UNH ahead
2024-12-3182.1888.81-1.37UNH ahead
2024-12-3081.8989.15-1.45UNH ahead
2024-12-2782.9589.53-1.37UNH ahead
2024-12-2683.8089.74-1.29UNH ahead
2024-12-2483.3588.85-1.25UNH ahead
2024-12-2383.8288.89-1.20UNH ahead
2024-12-2082.4287.80-1.25UNH ahead
2024-12-1981.7985.89-1.11UNH ahead
2024-12-1884.0587.73-1.05UNH ahead
2024-12-1779.0485.24-1.37UNH ahead
2024-12-1681.3387.52-1.35UNH ahead
2024-12-1383.8991.37-1.47UNH ahead
2024-12-1284.2190.55-1.34UNH ahead
2024-12-1187.5193.67-1.30UNH ahead
2024-12-1092.6799.22-1.28UNH ahead
2024-12-0994.9998.42-0.94UNH ahead
2024-12-0694.5996.49-0.77UNH ahead
2024-12-0596.01101.64-1.10UNH ahead
2024-12-0498.25107.23-1.37UNH ahead
2024-12-0399.67106.25-1.14UNH ahead
2024-12-02100.32106.83-1.11UNH ahead
2024-11-29100.54107.13-1.10UNH ahead
2024-11-27100.15106.81-1.11UNH ahead
2024-11-2699.70106.53-1.12UNH ahead
2024-11-2599.11106.36-1.16UNH ahead
2024-11-2297.75103.73-1.05UNH ahead
2024-11-2198.24104.89-1.10UNH ahead
2024-11-2096.25105.42-1.33UNH ahead
2024-11-1995.98101.30-0.99UNH ahead
2024-11-1895.97103.52-1.18UNH ahead
2024-11-1595.69103.97-1.25UNH ahead
2024-11-1496.39104.13-1.19UNH ahead
2024-11-1398.82106.37-1.16UNH ahead
2024-11-12101.15107.91-1.08UNH ahead
2024-11-11102.10109.77-1.15UNH ahead
2024-11-0895.17108.11-1.64UNH ahead
2024-11-0795.09106.29-1.50UNH ahead
2024-11-0693.82104.75-1.50UNH ahead
2024-11-0594.7699.55-0.96UNH ahead
2024-11-0492.9597.92-0.98UNH ahead
2024-11-0194.1999.64-1.03UNH ahead
2024-10-3193.6999.10-1.03UNH ahead
2024-10-3093.1298.83-1.06UNH ahead
2024-10-2991.7498.69-1.19UNH ahead
2024-10-2893.7399.23-1.04UNH ahead
2024-10-2594.3099.11-0.98UNH ahead
2024-10-2494.7198.46-0.88UNH ahead
2024-10-2394.5199.13-0.96UNH ahead
2024-10-2294.48100.04-1.05UNH ahead
2024-10-2195.31100.33-1.00UNH ahead
2024-10-18100.00100.00-0.53UNH ahead

One-day company-specific moves (4+ standard deviations, which block ideas for 10 sessions): Jan 30, 2025 (CI -6.7%, UNH +1.4%); Apr 17, 2025 (CI +0.2%, UNH -22.4%); May 13, 2025 (CI -4.4%, UNH -17.8%); May 15, 2025 (CI +1.8%, UNH -10.9%); Oct 30, 2025 (CI -17.4%, UNH -3.0%); Jan 27, 2026 (CI -3.7%, UNH -19.6%). Upcoming earnings: CI Nov 5, 2026 (pre-market).

Paired trades

The shared paper book and the replay, kept apart

Forward paper record

No paper position on this pair yet.

Historical simulation (a diagnostic, same rules)

2 simulated trades to Oct 20, 2026: -5.46% per trade on average after costs, 0 won.

LegsEnteredExitedWhyDaysBefore costsCosts + borrowAfter costs
Long CI · Short UNHJun 26, 2020Jul 17, 2020divergence stop21-$656.91-$36.56-$702.63 (-7.03%)
Long CI · Short UNHFeb 1, 2018Feb 16, 2018divergence stop15-$347.94-$34.77-$389.34 (-3.89%)

Per $10,000 a leg. A replay on today's companies cannot prove an edge.

The companies

CI and UNH at a glance

CI The Cigna Group

Listing
NYSE · SEC CIK 1739940
Industry
Medical Specialities · SIC 6324 Hospital & Medical Service Plans
Market value
$78.9B
Price history
2,521 daily closes, Oct 12, 2016 to Oct 22, 2026

UNH UnitedHealth Group Incorporated Common Stock (DE)

Listing
NYSE · SEC CIK 731766
Industry
Medical Specialities · SIC 6324 Hospital & Medical Service Plans
Market value
$365.2B
Price history
2,521 daily closes, Oct 12, 2016 to Oct 22, 2026

Daily prices: Nasdaq.com. Filings and industry codes: SEC EDGAR. Earnings dates: Nasdaq earnings calendar.

Related
All pairs →
PairStatusAhead nowIndustry
ELV / CIWatchlistELV by 0.87 sdMedical Specialities
UNH / ELVWatchlistELV by 0.29 sdMedical Specialities

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Paper only: hypothetical paired positions with modelled costs. No broker, no orders, no real money. A historical simulation is a diagnostic, not proof of an edge. Not investment advice.